Answer:
Step-by-step explanation:
its the first one
Is that 123 or 12 times 3
No picture is shown can’t tell
-3x+4=15
-3x=15-4
-3x=11
x= -11/3
4(-11/3)-y= -19
-44/3-y= -19
-y= -19+44/3 multiply by (-1)
y=19-44/3
y=19•3/3-44/3
y=57/3-44/3
y=13/3
(x,y)=(-11/3, 13/3)
Question 4, C, $74.18
Question 5 , also C, $153.90
Hope this helps.